Question

In triangle DEF, the length of DE is √••30 inches, and the length of EF is 3 inches. If it can be determined, what is the length, in inches, of DF ? F. 3 G. √••30 H. √••33 J. √••39 K. Cannot be determined from the given information

Answer 1

K. Cannot be determined from the given information.

Explanation:

In the given triangle DEF, DE=√30 Inches, and EF=3 Inches. The length of DF cannot be determined from the given information.

We can only solve for DF if either an angle is given or the type of triangle is specified.

If an angle is given, we can use Sine or Cosine Rule to find the length as appropriate.

If the triangle is a right triangle, we can use Pythagoras Theorem.